From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yang Yingliang Subject: Re: A problem about ICMP packet-too-big message handler Date: Thu, 29 Jan 2015 09:04:58 +0800 Message-ID: <54C9873A.7000901@huawei.com> References: <54C78B8D.1070104@huawei.com> <20150128051929.GA3369592@devbig242.prn2.facebook.com> <54C885D3.70808@huawei.com> <1422449109.29618.42.camel@edumazet-glaptop2.roam.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Martin Lau , netdev , "David S. Miller" To: Eric Dumazet Return-path: Received: from szxga02-in.huawei.com ([119.145.14.65]:18251 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750864AbbA2BGR (ORCPT ); Wed, 28 Jan 2015 20:06:17 -0500 In-Reply-To: <1422449109.29618.42.camel@edumazet-glaptop2.roam.corp.google.com> Sender: netdev-owner@vger.kernel.org List-ID: On 2015/1/28 20:45, Eric Dumazet wrote: > On Wed, 2015-01-28 at 14:46 +0800, Yang Yingliang wrote: >> On 2015/1/28 13:19, Martin Lau wrote: >>> On Tue, Jan 27, 2015 at 08:58:53PM +0800, Yang Yingliang wrote: >>>> Hi, >>>> >>>> My kernel is 3.10 LTS. >>>> >>>> I got a problem here about handling ICMP packet-too-big message. >>>> >>>> Before sending a packet-too-big packet : >>> The expires should be set by the host _receiving_ the icmpv6 too-big. >>> >>> Can you spell out some details of the outgoing icmpv6 too-big packet? >>> like, the src/dst ip of the icmpv6 and the original ip packet that triggered the >>> too-big. >>> >> >> I don't send too-big packet to trigger the err handling. >> >> I just only send a ICMPv6 packet which type is ICMPV6_PKT_TOOBIG. > > You meant : you received an ICMPv6 packet, or you send it ? Received an ICMPv6 packet. Regards, Yang